/**
 * @Author:  蓝建平
 * @Description:字符串操作
 * @Date:  2019/12/4
 */
//运算符: +  *  ==  []
//插值表达式：${expression}
//常用属性：length,isEmpty,isNotEmpty

void main()
{
  String firstName='张';
  String lastName='三丰';
  print(firstName+lastName);
  String star='*';
  print(star*10);
  print('张三'=='李四');
  print(lastName[1]);
  print(lastName.isEmpty);
  print(lastName.isNotEmpty);
  print(lastName.length);
}
